As far as I am concerned, let him retire, but why not replace him for a farewell tour or something?
And I don't want to hear any nonsense that he is irreplaceable, he is not...it's not as if he wrote any of the music, is it?
Many bands have survived the departure of a member, and I don't see why they couldn't if they chose.
Geddy has dramatically improved as a lyricist, and it might even be nice not to have to hear him crowbar an excessive amount of words into each line.
However, if Alex is struggling, then that is a much more serious blow.
You don't consider drums a part of the music? Seriously?
Of course I do, but I think you're being a little disingenuous here, and you know exactly what I mean.
Neil did indeed come up with his drum parts, but he didn't write any riffs on the guitar and keys...he fitted in what he did around them.
I'm not saying it would be the same, but there are many drummers who could have done a good job for them...now, take Geddy or Alex out of the picture and it is indeed, game over